All the following are major factors that affect animals living in the deep ocean except:
a. light.
b. temperature.
c. salinity.
d. pressure.
C
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__________ are proteins that occur naturally in the
vertebrate nervous system but can cause fatal disease when they misfold. Fill in the blank(s) with the appropriate word(s).
You are examining an organism recently found on Mars and are currently trying to identify one of its neurotransmitters. Biochemical characterization indicates that it is a derivative of the amino acid tyrosine,
so you classify the novel neurotransmitter as a(n) A) acetylcholine analogue. B) catecholamine. C) neuropeptide. D) serotonin analogue. E) GABA analogue.
What does tonoplast refer to?
a. the plant nuclear envelope b. the cell wall c. a chloroplast d. the vacuolar membrane
A microorganism grows in the lab on medium containing mineral salts but no organic compounds. The organism is likely to be a(n)
A) heterotroph. B) autotroph. C) chemotroph. D) chemoheterotroph. E) The answer cannot be determined from the information provided.